Frankos VH, Schmitt DF, Haws LC, McEvily AJ, Iyengar R, Miller SA, Munro IC, Clydsdale FM, Forbes AL, and Sauer RM. 1991. Generally recognized as safe (GRAS) evaluation of 4-hexylresorcinol for use as a processing aid for the prevention of melanosis in shrimp. Reg Toxicol Pharmacol. 14:202-212.